Ochsner AIR 7 Operating And Installation Manual

Contents

Ochsner AIR 7 Operating And Installation Manual Manual pdf 34 page image

INSTALLATION | Appliance installation34 www.ochsner.com | 982000-AIR-M2-M4-EN03.110.4 Electrical connection10.4.1 GeneralWARNING: ElectrocutionBefore commencing work on electrical connectionsand installation, the heat pump system must beisolated and voltage-free.WARNING: ElectrocutionWork on electrical connections and installation maybe conducted only by qualified contractors.WARNING: ElectrocutionBefore commissioning, the necessary fault pro-tection measures on the system and the earthconnection must be checked by an authorisedcontractor.i InformationIt is essential that the regulations of the responsiblepower supply utility (PSU) and the applicable ENstandards be observed.► Before commencing work to connect up the powersupply, the necessary activities defined in „Preparingthe electrical connections“ on page 22 must havebeen completed.► For the electrical connection, use the system principleschematic appropriate to your heat pump system fromsection „System schematic diagrams“ on page 68.10.4.2 Electrical connection of the indoor unit» Remove the control box cover (see „Disassemblingthe appliance casing“ on page 26).11_02_200_202_01_011» Undo and remove the four nuts on the two metalplates at the cable entries.» Remove the two metal plates at the cable entries togain access to the cable strain reliefs.i InformationWhen fitting the cables in the indoor unit, ensurethat subsequent connection work and soldering onthe refrigerant lines will not be obstructed by thecables.i InformationFor the shielded cables between the outdoor andindoor units, use the shielding clamps provided onthe control box panel.i InformationFor the cables inside the control box on the indoorunit, use the cable strain reliefs provided.» Connect the lead for suction gas sensor S2 (comingfrom the outdoor unit) to the terminal provided.» Connect the cable for the stepper motor of expansionvalve A (located in the outdoor unit) directly to thefree terminal on the expansion valve controller (EVD).Be sure that each wire is connected correctly accord-ing to its colour.» Connect the leads for defrost sensors TQE and TQAdirectly to the OTE controller.» Connect the fan speed lead (0-10 VDC) directly to theOTE controller.» Connect the temperature sensors required by yoursystem (TA, TPO, TPM, TMK, TB) directly to the OTEcontroller.» Connect the external pumps and servomotors re-quired by your system (switching module, mixingvalve) directly to the OTE controller.i InformationFor external pumps and servomotors, use the PEterminals on the relevant OTE plug.